Our low-voltage control and protection series products can provide can provide you with motor direct start, reversible start and star delta start protection scheme. It is suitable for controlling all kinds of three-phase asynchronous motors. During the operation of construction machinery, some low-voltage components such as AON series MCB, CJX2 series AC contactors and AOV series motor circuit breaker can be used together. MCCB and MCB are used for open circuit and overload protection of main circuit. AC Contactor and thermal relay are used to control and protect the safe operation of motor, while transformer is used to provide voltage stability for secondary circuit.